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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9osw | ||||||
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| タイトル | Tetrameric POLQ Helicase-like Domain Bound to Cmpd 19, a Small-Molecule ATPase Inhibitor and Drug Candidate Analog | ||||||
要素 | DNA polymerase theta | ||||||
キーワード | DNA BINDING PROTEIN / Theta-mediated end-joining DNA-dependent ATPase DNA repair Inhibitor co-complex | ||||||
| 機能・相同性 | 機能・相同性情報double-strand break repair via alternative nonhomologous end joining / HDR through MMEJ (alt-NHEJ) / single-stranded DNA helicase activity / replication fork processing / mitochondrial nucleoid / site of DNA damage / 5'-deoxyribose-5-phosphate lyase activity / error-prone translesion synthesis / negative regulation of double-strand break repair via homologous recombination / somatic hypermutation of immunoglobulin genes ...double-strand break repair via alternative nonhomologous end joining / HDR through MMEJ (alt-NHEJ) / single-stranded DNA helicase activity / replication fork processing / mitochondrial nucleoid / site of DNA damage / 5'-deoxyribose-5-phosphate lyase activity / error-prone translesion synthesis / negative regulation of double-strand break repair via homologous recombination / somatic hypermutation of immunoglobulin genes / DNA helicase activity / base-excision repair / protein homooligomerization / RNA-directed DNA polymerase / RNA-directed DNA polymerase activity / double-strand break repair / site of double-strand break / DNA helicase / DNA-directed DNA polymerase / damaged DNA binding / DNA-directed DNA polymerase activity / DNA repair / DNA damage response / chromatin binding / magnesium ion binding / Golgi apparatus / ATP hydrolysis activity / nucleoplasm / ATP binding / identical protein binding / nucleus / cytosol 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.67 Å | ||||||
データ登録者 | Zahn, K.E. / Mader, P. / Sicheri, F. | ||||||
| 資金援助 | 1件
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引用 | ジャーナル: J Med Chem / 年: 2025タイトル: The Discovery of RP-2119: A Potent, Selective, and Orally Bioavailable Polθ ATPase Inhibitor. 著者: Philippe Mochirian / Robert Papp / Marie-Claude Mathieu / Gino B Ferraro / Evelyne Dietrich / Bingcan Liu / David Bendahan / Alexander L Perryman / Simon Surprenant / Sara Fournier / Bita ...著者: Philippe Mochirian / Robert Papp / Marie-Claude Mathieu / Gino B Ferraro / Evelyne Dietrich / Bingcan Liu / David Bendahan / Alexander L Perryman / Simon Surprenant / Sara Fournier / Bita Lotfollahzadeh Barzili / Alexanne Bonneau-Fortin / Shou Yun Yin / Marie-Eve Leclaire / Charmi Patel / Hugo Poirier / Sai Save / Yann Mathieu / Nicolas Morin / Claude Godbout / Helen E Burston / Karl E Zahn / Mohamed A Attia / Thomas Pinter / Francis Barabé / Paranjay Parikh / Chandresh Jagani / Gyunghoon Kang / Giovanna Scapin / Yael Mamane / Agnel Sfeir / Pavel Mader / Frank Sicheri / Michal Zimmermann / Anne Roulston / Stephen J Morris / W Cameron Black / Michel Gallant / ![]() 要旨: DNA polymerase theta (Polθ) plays a critical role in repairing DNA double-strand breaks through microhomology-mediated end joining (MMEJ) and has emerged as a key synthetic lethal drug target in ...DNA polymerase theta (Polθ) plays a critical role in repairing DNA double-strand breaks through microhomology-mediated end joining (MMEJ) and has emerged as a key synthetic lethal drug target in cancers with homologous recombination (HR) deficiencies. Its inhibition has shown a strong potential to synergize with PARP inhibitors, particularly in tumors with deleterious or mutations. Here, we describe the discovery and preclinical development of RP-2119, a selective, potent, and bioavailable Polθ ATPase inhibitor. Starting from a high-throughput ATPase screen combined with literature insights, key vectors for enhancing potency were identified by structural studies using single-particle cryo-electron microscopy (cryo-EM) that revealed the inhibitor binding site. Further optimization of potency and ADME properties led to the identification of RP-2119 with robust cellular activity in a wide range of HR-deficient cancer cell lines. In HR-deficient cell line- and patient-derived mouse xenografts, RP-2119 demonstrated strong synergy with the PARP inhibitor, olaparib, without exacerbating its hematological toxicity. | ||||||
| 履歴 |
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9osw.cif.gz | 1008.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9osw.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9osw.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| 文書・要旨 | 9osw_validation.pdf.gz | 1.7 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9osw_full_validation.pdf.gz | 1.8 MB | 表示 | |
| XML形式データ | 9osw_validation.xml.gz | 80.4 KB | 表示 | |
| CIF形式データ | 9osw_validation.cif.gz | 120.3 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/os/9osw ftp://data.pdbj.org/pub/pdb/validation_reports/os/9osw | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 70812MC ![]() 9osyC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 100884.812 Da / 分子数: 4 / 断片: N-terminal domain / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: POLQ, POLH / 発現宿主: ![]() 参照: UniProt: O75417, DNA helicase, DNA-directed DNA polymerase, RNA-directed DNA polymerase #2: 化合物 | ChemComp-A1CER / ( 分子量: 488.949 Da / 分子数: 4 / 由来タイプ: 合成 / 式: C24H17ClN6O2S / タイプ: SUBJECT OF INVESTIGATION 研究の焦点であるリガンドがあるか | Y | Has protein modification | N | |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
| 構成要素 | 名称: Polymerase theta N-terminal domain in complex with ATPase inhibitor compound タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 分子量 | 値: 0.4 MDa / 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.5 詳細: 20 mM HEPES pH 7.5, 300 mM NaCl, 1 mM TCEP, 5% glycerol |
| 試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: POLQ-ATPase + RP-11203 compound were mixed on ice in buffer to a final concentration of 1.00 mg/mL protein and 2x molar equivalents of the inhibitor compound |
| 試料支持 | グリッドのタイプ: UltrAuFoil |
| 急速凍結 | 凍結剤: ETHANE 詳細: 3 microL drop of sample suspension is applied to an EM grid that has been plasma-cleaned using a Gatan Solarus. After blotting the sample away with filter paper, grids are plunge-frozen in ...詳細: 3 microL drop of sample suspension is applied to an EM grid that has been plasma-cleaned using a Gatan Solarus. After blotting the sample away with filter paper, grids are plunge-frozen in liquid ethane. Grids are stored under liquid nitrogen until transferred to the transmission electron microscope for imaging. |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 1200 nm |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 15749 |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||
| 粒子像の選択 | 詳細: ~14.5M particles were initially selected from 14,375 manually curated micrographs using cryoSPARC 3.1 live. All subsequent data processing was carried out in cryoSPARC 3.1.These particles ...詳細: ~14.5M particles were initially selected from 14,375 manually curated micrographs using cryoSPARC 3.1 live. All subsequent data processing was carried out in cryoSPARC 3.1.These particles were subjected to 3 rounds of 2D classification. A subset of particles from the final round of 2D classification were used to train the Deep Learning particle picker Topaz (as implemented in cryoSPARC 3.1). The Topaz trained model was used to re-extract particles from the 14,375 micrographs, yielding a new particle set comprising ~7M particles. | |||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.67 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 674000 / 対称性のタイプ: POINT | |||||||||||||||||||||||||
| 原子モデル構築 | B value: 76.4 / プロトコル: FLEXIBLE FIT / 空間: REAL / Target criteria: CC_mask: 0.8076 | |||||||||||||||||||||||||
| 原子モデル構築 | PDB-ID: 5AGA Accession code: 5AGA / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||
| 精密化 | 最高解像度: 2.67 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | |||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
引用




PDBj





FIELD EMISSION GUN
